media: drop Content-Type detection support

Signed-off-by: strawberry <strawberry@puppygock.gay>

Cargo.lock

@@ -666,7 +666,6 @@ dependencies = [
  "http 1.1.0",
  "http-body-util",
  "image",
- "infer",
  "ipaddress",
  "itertools 0.13.0",
  "libloading",
@@ -1685,12 +1684,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "infer"
-version = "0.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc150e5ce2330295b8616ce0e3f53250e53af31759a9dbedad1621ba29151847"
-
 [[package]]
 name = "inlinable_string"
 version = "0.1.15"